Dish-washing machine.



C. R. WITTEIVIANN.

DISH WASHING MACHINE.

APPLICATION FILED FEB. 7. 1914.

Patented Oct. 3, 1916.

2 SHEETS-SHEET l.

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C. R WITTEMANN.

DISH WASHING MACHiNE APPLICATION FILED FEB. r. 1914.

Patented Oct. 3, 1916.

2 SHEETS-SHEET 2,

ED STATES PATENT OFFICE.

CHARLES RJWITTEMANN, OF RICHMOND, NEW YORK.

DISH-WASHING MACHINE.

toward means whereby dishes and other articles of table use may beautomatically and thoroughly cleansed without occasioning the wetting ofthe hands of an operator.

In brief my said improvements comprise a receptacle having a removablebasket or support for the articles to be washed, a jacket about saidreceptacle, an adjustable connection between said jacket and a source ofwater supply. means for introducing pressure jets of water into saidreceptacle from said jacket, an overflow outlet from said receptacle,and a valved drainage outlet.

In the drawing, Figure 1. is a vertical section of my improved dishwashing machine, showing its mode of connection with a faucet. Fig. 2 isan enlarged partial end sectional view of the receptacle showing theoverflow. Fig. 3 is a corresponding side view, showing the inlet. Fig. 4is an enlarged side elevation of the drainage valve, and Fig. 5 is asection on the line 5-5 of Fig. 4. j

Incarrying out my said improvements I provide a receptacle, as a, whichmay be rectangular in form and of suitable dimensions. Said receptacleis supplied with a hollow, belt-like portion, as 6, serving as a waterjacket or chamber, which is provided with suitable means ofcommunication with a faucet, or other pressure supply of water.

As illustrated, the water jacket or chamber b is formed by enlarging orexpanding the-receptacle a,-externally, in an intermediary, horizontalzone about its walls, and by covering said expanded portion, within thereceptacle, with sheet material, as 0, the inner surfaces of thematerials of the main portion of the receptacle, and of the sheet a,being conterminous, 'to thereby provide smooth continuous inner wallsurfaces within the receptacle. ,4 i

A water space, as d, exists between the expanded receptacle portion band the sheet a, and said sheet 0 is provided with orifices 0' for theintrod ct n o j s o ater i Specification of Letters Patent.

. issue.

. Patented Oct. 3, 1916.

Application filed February 7, 1914. Serial No. 817,099.

the receptacle. It being my purpose to cause the ets of water to issuefrom their orifices w th the maximum of force available, said orlficesare tapered inwardly, and as the general thlckness of the sheet a wouldnot, without an undue increase in weight, be suificient' to allow theformation of these tapered orlfices, I provide thickened portionsof saidsheet, as by the solid horizontal ribs 0?, and locate the taperedorifices in these ribs. The tapered orifices are drilled or otherwiseformed in different angles, whereby the streams of water they introduceinto the re ceptacle will be directed, some straight across saidreceptacle from all sides, and other obliquely in different angles,relat1vely to the wall surface from which they Water is introduced intothe space d as through an elbow or other branch connection e,communicating with said space and extendlng from the outer surface ofthe receptacle, for connection, as-by detachable tubing 7, with a waterfaucet. Said pipe connection may carry a cup, ;as e, to cont-ain agrease solvent capable of feeding in with the inflowing water, wherebythe water in its passage through said-connection may become charged withsuch ingredient.

' An overflow outlet, as g, is provided near the upper portion of thereceptacle, and is intended to carry off the top water and floatingmatter in the operation of the washer. Said overflow outlet is in theform of a depending duct connecting with a broad slot in the receptacleto be of ample capacity for the performance of its function. The endwall of the receptacle at which this overflow outlet is situated isintended to overhang a sink or other waste when in use.

The receptacle is also equipped with a drainage outlet, as h, near itsbase, which may for convenience be located on the same side of thereceptacle as the overflow outlet, that it may also overhang the sink orwaste.

Said outlet h is provided with a pivotal. ,valve, as 71, adapted to beswung upwardly to uncover said outlet, said valve having a supportingstop It to limit its further movement when the outlet is fullyuncovered, so that said valve is retained in the open position inconvenient manner for handling in closing; and said outlet is providedwith a stop 71. to limit the forwardv closing movement of the valve. I

A basket, as j,- h c m y be o s o g wire, in large mesh, is adapted tobe removably fitted in the receptacle to contain the dishes and otherarticles to be washed. The base of said basket may be corrugated, as byusing vertically corrugated warp or weft strands, or by crimping saidbase, thereb providing a base, which will afford a su cient clearancebetween the articles supported and the bottom of the receptacle, toallow the passage of fluid therebetween. Said basket has handles, as 7''whereby it may be conveniently placed within and removed from thereceptacle.

In the operation of my improved washer a basket containing articles tobe washed is placed within the receptacle, which latter is then coveredwith a lid, as k. Connection is then made between the elbow e and afaucet by means of the flexible tubing f, whereupon water under pressureenters the space d, and issues into the receptacle from orifice c inform of forcible streams or jets from all four sides across thereceptacle in different angles, these jets impinging against thearticles in the basket and attacking the soluble matter thereon. If thereceptacle be allowed to fill with water the overflow will ,pass offthrough outlet 9, carrying therewith the dislodged matter, and if it bedesired tocontinue to exercise the stream force of the jets, the valve71 is opened to permit discharge through outlet 71.. It should be notedthat the Water in the receptacle is agitated and caused to circulatetherein by reason of the arrangement of the jet orifices in suitableangles, and that the movement of the body of water in the receptacleaids in the cleansing operation.

I have found in practice it to be desirable to employ cold water atfirst, especially where egg, flour and other foods or condiments, morereadily soluble in cold water, are to be attacked, andsubsequentlytotransfer the pipe connection to the hot water faucet tocomplete the operation. When the washing has been completed the basketcontaining the articles can be lifted out from the receptacle, and ifnecessary put in a warm place for drainage and drying, after which thearticles will only need polishing with a dry cloth. The lid or cover I;has a flat top surface, and its handles is do not project above said topsurface, so that when-not covering the receptacle said lid may bereversed and placed flatly upon a table to serve as a tray.

I claim:

1. An apparatus of the character described comprising a receptaclehaving an outwardly expanded horizontal portion in Its wall, an innercovering plate for said expanded portion, forming a water chamber, saidplate having thickened portions provided with jet orifices directedtoward the interior of said receptacle, and means of connection betweensaid chamber and a source of water supply.

2. An apparatus of the character described comprising a receptaclehaving an outwardly expanded horizontal portion in its wall, an innercovering plate for said expanded portion, forming a water chamber, saidplate having a series'of parallel solid ribs provided with series of jetorifices directed toward the interior of said receptacle, and means ofconnection between said chamber and a source of pressure water supply.

3. An apparatus of the character described, comprising a rectangularreceptacle having an intermediate, horizontal, outwardly expandedportion about its walls, a continuous inner covering plate for saidexpanded portion, conterminous with the main portions of the receptaclewalls, said extended portion and plate forming a water chamber, and saidplate having a series of solid parallel ribs provided with series of jetorifices directed toward the interior of said receptacle, a branch fromsaid Water chamber for connection with a source of pressure water supplyand an open-work basket removably fitting within said receptacle, tocontain the articles to be washed. Signed at the borough of Manhattan inthe city, county, and State of New York, this 5th day of February, A..D.1914.

CHARLES R. WITTEMANN.

' Witnesses:

HARRY J. NEUscHArnR,

CLARENCE S. ASHLEY.

